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  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

Sur d’autres sites (7253)

  • FFmpeg framerate parameter

    24 avril 2020, par mentalmushroom

    I am confused by the FFmpeg framerate parameter. As far as I understand the docs and wiki, it sets the number of frames per second for the input (and the output unless -r option is specified). In fact, when I set the framerate to 1, the video is being played pretty much at its normal speed (25-30, but definitely not 1 frame per second as expected). Setting framerate to 2 makes it play around twice as fast (not 2 frames per second).

    



    To give a little bit more details, there is a python script which reads a video sample frame-by-frame as fast as it can and outputs these frames immediately to FFmpeg :

    



    python main.py -i myvideo.mp4 | ffmpeg -v warning -f rawvideo -pixel_format bgr24 -video_size 768x432 -framerate 2 -i - http://0.0.0.0:3004/fac.ffm


    



    What could be the reason for such behavior ?

    


  • How to build FFmpeg executable for commercial use using Windows ?

    18 octobre 2024, par Xel Naga

    I'm developing a commercial software and it requires ffmpeg.exe to run properly.

    



    I'm aware of the FFmpeg legal page (https://www.ffmpeg.org/legal.html) and want to Compile FFmpeg without "—enable-gpl" and without "—enable-nonfree". However the compilation guide (https://trac.ffmpeg.org/wiki/CompilationGuide) seems neglected because some links lead to 404 pages, and some required programs didn't install properly on my PC, crashed in fact.

    



    I tried all the ways to compile but could not succeed. I use Windows 8.1 and I'm not comfortable with minGW, MSYS, MSVC.

    



    How can I compile FFmpeg executable for commercial use, or better, how can I download ffmpeg.exe (compiled for commercial use) without hassle ?

    


  • Should I open source my source code when I rebuild ffmpeg and dynamiclly link to my program ? [closed]

    20 septembre 2024, par openjz

    I have a c++ program developed on visual studio 2022, and my program need to work with ffmpeg, I rebuild it and I don't know if there is open source problem.

    


    I rebuild ffmpeg for windows msvc paltform (according to https://trac.ffmpeg.org/wiki/CompilationGuide/MSVC) by customize the build configuration, but I don't modify the source code and build script of ffmpeg, and I don't enable gpl or gpl v3 in the build configuration, ffmpeg is dynamiclly linked to my program, I'm sure that the only license I should concern is the LGPL-2.1 or later, in this case, if I want to distribute my program for commercial use, should I open source my source code ?

    


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